package com.driver.fordriver.util;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.Signature;
import android.util.Log;
import android.widget.Toast;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.InputStream;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

import solid.ren.skinlibrary.SkinLoaderListener;
import solid.ren.skinlibrary.loader.SkinManager;

/**
 * Created by XuYeWen on 2017/12/25.
 */

public class XywUtil {


    public static Toast toast;
    public static void showToast(Context context,String string){
        if(null==toast){
            toast=Toast.makeText(context,string,Toast.LENGTH_SHORT);
        }else {
            toast.setText(string);
        }
        toast.show();
    }

    public static void log(String string){
        Log.i("fordriver_log",string);
    }
    //这个是获取SHA1的方法
    public static String getCertificateSHA1Fingerprint(Context context) {
        //获取包管理器
        PackageManager pm = context.getPackageManager();
        //获取当前要获取SHA1值的包名，也可以用其他的包名，但需要注意，
        //在用其他包名的前提是，此方法传递的参数Context应该是对应包的上下文。
        String packageName = context.getPackageName();
        //返回包括在包中的签名信息
        int flags = PackageManager.GET_SIGNATURES;
        PackageInfo packageInfo = null;
        try {
            //获得包的所有内容信息类
            packageInfo = pm.getPackageInfo(packageName, flags);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        //签名信息
        Signature[] signatures = packageInfo.signatures;
        byte[] cert = signatures[0].toByteArray();
        //将签名转换为字节数组流
        InputStream input = new ByteArrayInputStream(cert);
        //证书工厂类，这个类实现了出厂合格证算法的功能
        CertificateFactory cf = null;
        try {
            cf = CertificateFactory.getInstance("X509");
        } catch (Exception e) {
            e.printStackTrace();
        }
        //X509证书，X.509是一种非常通用的证书格式
        X509Certificate c = null;
        try {
            c = (X509Certificate) cf.generateCertificate(input);
        } catch (Exception e) {
            e.printStackTrace();
        }
        String hexString = null;
        try {
            //加密算法的类，这里的参数可以使MD4,MD5等加密算法
//            MessageDigest md = MessageDigest.getInstance("SHA1");
            MessageDigest md = MessageDigest.getInstance("MD5");
            //获得公钥
            byte[] publicKey = md.digest(c.getEncoded());
            //字节到十六进制的格式转换
            hexString = byte2HexFormatted(publicKey);
        } catch (NoSuchAlgorithmException e1) {
            e1.printStackTrace();
        } catch (CertificateEncodingException e) {
            e.printStackTrace();
        }
        return hexString;
    }
    //这里是将获取到得编码进行16进制转换
    private static String byte2HexFormatted(byte[] arr) {
        StringBuilder str = new StringBuilder(arr.length * 2);
        for (int i = 0; i < arr.length; i++) {
            String h = Integer.toHexString(arr[i]);
            int l = h.length();
            if (l == 1)
                h = "0" + h;
            if (l > 2)
                h = h.substring(l - 2, l);
            str.append(h.toUpperCase());
            if (i < (arr.length - 1))
                str.append(':');
        }
        return str.toString();
    }

    public static void onSkinSetClick(final Context context) {

//        File skin = new File("/mnt/sdcard/goldtheme.skin");
//
//        if(skin == null || !skin.exists()){
//            Toast.makeText(getActivity(), "请检查"  + "是否存在", Toast.LENGTH_SHORT).show();
//            return;
//        }

        SkinManager.getInstance().loadSkin("goldtheme.skin",
                new SkinLoaderListener() {
                    @Override
                    public void onStart() {
                        XywUtil.showToast(context,"正在切换中");
                    }

                    @Override
                    public void onSuccess() {
                        XywUtil.showToast(context,"切换成功");
                    }

                    @Override
                    public void onFailed(String errMsg) {
                        XywUtil.showToast(context,"切换失败");
                    }

                    @Override
                    public void onProgress(int progress) {

                    }

                }

        );
    }
    public static void reStoreSkinTheme(){
        SkinManager.getInstance().restoreDefaultTheme();
    }
}
